That's the key component that is usually missing when I hear other entrepreneurs/investors say they don't like QBO.Something else to keep in mind is your entity structure and how your entities file tax returns.

@Robert Johnson - To me, replacing old sewer lines and infrastructure components (roof, electrical, plumbing, etc..) are the components that don't add a ton of value, but could certainly kill the cash flow / reserves on a deal.

The trick to it all is setting and keeping good fences. 100% of C4D's I have seen blow-up have all had the common component of neglect on behalf of the investor.

Many people think all tenants are good, there is good cash flow on turn key LTR leveraged purchases, there are no vacancies and associated tenant flips, that all components in a property last forever, that property tax and insurance cannot increase significantly.  

Definitely something that should be factored in to returns in some way,  IMHO if your going to be flipping houses at any velocity having your own RE license not only is going to obviously put more money in your pocket but can be a critical component depending on price point.

That's the key component that is usually missing when I hear other entrepreneurs/investors say they don't like QBO.Something else to keep in mind is your entity structure and how your entities file tax returns.

Starting out, liquidity is usually one of the larger components for financing as most lenders will want to see that you have x amount of reserves available beyond down payment and closing costs. 

Find a local inspector with a good reputation and experience inspecting investment properties to identify issues with wiring, plumbing, structural components, and more.

@Jay Hinrichs minimizing banks having to take back property could be a key component to saving our economy 

For the electrical component take total watts of bb heaters x hrs used ÷ by 1000 (conversion factor) that will give you kwh used.